Spring structure



y 24, 1932- J. M. OLDHAM 1,859,630

SPRING STRUCTURE Filed May 19, 1950 2 Sheets-Sheet l INVENTOR John M 0/d/70f77 ATTORNEY3 J. M OIY DHAM 1,859,630

SPRING STRUCTURE Filed May 19. 1959 2 Sheets-Sheet 2 INVENTOR Patented May 24, 1932 UNITED STATES PATENT OFFICE JOHN M. OLDHAM, F DETROIT, MICHIGAN, ASSIGNOR TO L. A. YOUNG SPRING & WIRE CORPORATION, OF DETROIT, MICHIGAN SPRING STRUCTURE Application filed May 19, 1930. Serial No. 453,824.

The main object of this invention is to provide in a spring structure of the cushion type an improved bracing means in which the braces are secured to coacting parts without the employment of clips, the connection being very secure and the parts easily oined.

Objects pertaining to details and economies of my invention will definitely appear from the description to follow. The invention is defined in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawings, in which Fig. 1 is a fragmentary plan view of a seat cushion embodying the features of my invention.

Fig. 2 is a vertical section on a line corre sponding to line 2-2 of Fig. 1.

Fig. 3 is an enlarged fragmentary perspective view illustrating one step in the engagement of the brace with the connected ele ments.

Fig. 4 is an enlarged fragmentary perspective view further illustrating the method of engaging the parts.

Fig. 5 is a fragmentary perspective view of the two elements connected by the brace and the brace.

Fig. 6 is a plan View of a top border frame 3 embodying my improvements.

Fig. 7 is an enlarged detail section on line 77 of Fig. 6.

Fig. 8 is an enlarged detail section on line 88 of Fig. 6.

In the accompanying drawings I have illustrated my improvements as embodied in a seat cushion, no attempt being made to maintain proportions.

The body springs 1 of the embodiment illustrated are of the helically coiled hour-glass type, the upper coils of the outer springs hei ng secured to the top border frame 2, which is formed of wire, by means of the clips 3. The base strips 4 are formed of sheet metal bent into a channel form with a reinforcing bead at the top thereof, the channel being clamped upon the bottoms of a plurality of springs. Only such portions of the bottom structure are illustrated as are deemed essential to the illustration of my present improvements.

The border frame 2 is formed with relatively short return bonds 5 therein forming adjacent oppositely facing offsets 6. The braces 7 have spirally curved loops or hooks 8 at one end and lateral offset arms 10 at the other. These hooks 8 may be engaged with the return bend of the border frame by a rotative and longitudinal movement of the brace, the loop of the brace being first presented to one of the offsets as shown in Fig. 3 and the brace rotated and moved longitudinally as indicated in Fig. 4 to the engaged position shown in Fig. 5. This engagement may be very easily effected.

The arm 10 is then engaged in the channel and secured therein by clamping a portion of the channel thereon as shown at 11, Fig. 5. This secures the brace against rotative move ment so that its loop end is locked to the member to which it is engaged. The base glement constitutes the thrust element of the race.

In the modification shown in Fig. 6 the braces 12 have spiral loops 13 at one end and similar loops 14 at the other coacting with the return bends 15 formed in opposite members of the border frame 16. The loops 13 in this embodiment are formed the same as the loops 8 in the embodiment shown in Figs. 1 to 5, inclusive. The loops 14 are left open to such a degree that they may be engaged with the offsets by springing the frame into the same. They are then closed up as shown in Fig. 7 with a pair of pliers, thereby locking the parts together and supporting the brace against rotative movement.

The parts of my spring structure are easily and economically formed, may be very quickly assembled, and when assembled are securely connected.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a spring structure, the combination of body springs, a top border frame of Wire having reverse bends therein, a channeled bottom spring supporting member clamped upon the bottom coils of a plurality of body springs, and a brace having a spirally curved loop at one end engaged with said return I my hand.

bends of said top border frame and a laterally disposed arm at the other end engaged in said channel and acting to support the brace against rotative movement.

2. In a spring structure, the combination of body springs, spaced spring supporting members, one of said members having return bends therein and the other having a channel, and a brace having a spirally curved hook at one end engaged with said return bends and a laterally projecting arm at the other end engaged Within said channel member and supporting said brace against rotative movement.

3. In a spring structure, the combination of body springs, spaced spring supporting members, one of said members having oppositely facing offsets therein, and a brace having a spiral loop at one end engaged in said offsets by a rotative movement of the brace, the other end of the brace being nonrotatively secured to the other spring supporting member. v

In Witness whereof I have hereunto set JOHN M. OLDHAM. 

